- +++ 1987 .d. caseta/cassette DAT = Digital Audio Tape
- +++ 1980.l.c. Philips LDB 4401 - world's first digital minicassette
- +++ 1971.g.c. Alpha One
- +++ 1963 a.c. Philips EL 1903 - first compact-cassette(TM) model
- +++ 1962-3.f.c. 3M(Scotch) type 270
- +++ 1962 (?).e.c. caseta/casette Vity
- +++ 1958.a.c.- caseta/cassette pt/for Saba TKR15 radiorecorder
- +++ 1951(?).a.c. caseta/cartridge Peirce 330
- +++ 1944(?).a.c. Cosmos Industries MX-303A/ANQ-1 - wire cart
- +++ 1942 .a. Textophon BW4 I - first audio cassette-3rd variant
- +++ ca1973.g.c. Grundig Steno-cassette
- +++ 1994.c.c. Sony DTRS cassette
- +++ 1992.c.c. Sony NTC - smallest audio cassette ever made
- +++ 1992.b. ADAT casssette
- +++ 1991.a. Philips DCC = Digital Compact Cassette